A new study shows teenage girls could face the worst harm from climate change. That's because families often pull their daughters out of school in times of extreme crisis, and may even sell them as so-called "famine brides." Girls also may not be taught the skills — like swimming or tree-climbing — they need to survive natural disasters. Study author Kelly Hawrylyshyn says, "I think it's a call to action … We can't just look at poor people as a homogenous whole but we need a more nuanced understanding of how people are influenced by climate change and tailor our responses to that."